Serial port problems, ServerGuide problems

Serial port problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom	Action

The number of serial ports that	1.	Make sure that:
are identified by the operating	1.	Make sure that:
are identified by the operating		v Each port is assigned a unique address in the Configuration/Setup Utility
system is less than the number			program and none of the serial ports are disabled.
of installed serial ports.			program and none of the serial ports are disabled.
of installed serial ports.		v The serial-port adapter (if one is installed) is seated correctly.
	2.	Reseat the serial port adapter.
	3.	Replace the serial port adapter.

A serial device does not work.	1.	Make sure that:
	1.	Make sure that:
		v The device is compatible with the server.
		v The serial port is enabled and is assigned a unique address.
		v The device is connected to the correct connector (see “Rear view” on page
			22).
	2.	Reseat the following components:
		a.	Failing serial device
		b.	Serial cable
	3.	Replace the following components one at a time, in the order shown, restarting
		the server each time:
		a.	Failing serial device
		b.	Serial cable
		c. (Trained service technician only) System board

ServerGuide problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom	Action

The ServerGuide Setup and	1.	Make sure that the server supports the ServerGuide program and has a
Installation CD will not start.		startable (bootable) CD or DVD drive.
	2.	If the startup (boot) sequence settings have been changed, make sure that the
		CD or DVD drive is first in the startup sequence.
	3.	If more than one CD or DVD drive is installed, make sure that only one drive is
		set as the primary drive. Start the CD from the primary drive.

The ServeRAID program cannot	1.	Make sure that there are no duplicate or IRQ assignments.
view all installed drives, or the	2.	Make sure that the hard disk drive is connected correctly.
operating system cannot be	3.	Make sure that the hard disk drive cables are securely connected.
installed.

46IBM System x3250 Types 4364 and 4365: Installation Guide

4364, 4365 specifications

The IBM 4365 and 4364 are significant models in IBM’s lineup of mainframe computers, designed primarily for large organizations requiring robust processing capabilities. These models emerged during the late 1980s and early 1990s, serving to enhance the performance and versatility of business computing environments.

The IBM 4365, launched in 1985, is known for its sophisticated architecture and large processing power, capable of managing substantial transaction volumes. It features the advanced Multiple Virtual Storage (MVS) operating system, which allows for efficient processing and management of numerous tasks simultaneously. The MVS system contributes to high reliability and availability, factors paramount for businesses that rely on uninterrupted service.

One of the standout characteristics of the IBM 4365 is its ability to scale. Users could configure the system with multiple processors, allowing it to handle increasing workloads effectively. This scalability is made possible through its use of IBM's proprietary technology, which optimizes resource allocation to improve efficiency. The system could support an impressive number of users, making it ideal for large enterprises.

In contrast, the IBM 4364, released slightly later, is a more modest version aimed at smaller organizations but still renowned for its reliable performance. It too operates the MVS operating system, but its configurations are tailored for less intensive processing needs. It is designed with cost-effectiveness in mind, making it suitable for businesses that require robust computing without the extensive capabilities of larger systems.

Both models benefit from IBM's robust security features, ensuring data protection and compliance with industry standards. Additionally, they offer significant storage options, utilizing IBM's innovative storage technologies to retain vast amounts of data efficiently.

Among the key technologies that defined these mainframes were the use of advanced input/output capabilities and compatibility with a broad range of peripheral devices. This integration allowed organizations to enhance productivity while maintaining seamless operations across various applications.

Overall, the IBM 4365 and 4364 exemplify the evolution of mainframe technology during their era, offering remarkable processing power, superior reliability, and scalability while paving the way for future innovations in enterprise computing. Their legacy remains influential in shaping the landscape of business technology today, as organizations continue to rely on mainframe processing for critical operations.